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10 posts tagged with physics and energy. (View popular tags)
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ITER

A Star in a Bottle. "An audacious plan to create a new energy source could save the planet from catastrophe. But time is running out."
posted by homunculus on Feb 25, 2014 - 52 comments

noncommutative balls in boxes

Morton and Vicary on the Categorified Heisenberg Algebra - "In quantum mechanics, position times momentum does not equal momentum times position! This sounds weird, but it's connected to a very simple fact. Suppose you have a box with some balls in it, and you have the magical ability to create and annihilate balls. Then there's one more way to create a ball and then annihilate one, than to annihilate one and then create one. Huh? Yes: if there are, say, 3 balls in the box to start with, there are 4 balls you can choose to annihilate after you've created one but only 3 before you create one..." [more inside]
posted by kliuless on Jul 21, 2012 - 78 comments

Economics meet Thermodynamics

"We do not share the view of many of our economics colleagues that growth will solve the economic problem, that narrow self-interest is the only dependable human motive, that technology will always find a substitute for any depleted resource, that the market can efficiently allocate all types of goods, that free markets always lead to an equilibrium balancing supply and demand, or that the laws of thermodynamics are irrelevant to economics."
posted by jeffburdges on Apr 12, 2012 - 59 comments

Well, that about wraps it up for growth.

UCSD physicist Tom Murphy inaugurates his blog Do the Math with two posts on the thermal limits of energy use on earth and the related absurdity of infinite economic growth.
posted by adamdschneider on Aug 1, 2011 - 59 comments

If these pants could talk

Small amounts of sound can now be harvested by this special fabric to produce very small amounts of current. And what if there was a clever, logic-defying way to possibly greatly enhance the conversion capabilities of such piezoelectric materials? Then maybe I'll get that "Power Suit" I always wanted.
posted by cross_impact on Jul 22, 2010 - 18 comments

Roger Penrose is looking more credible

Quantum processes involved in photosynthesis? "[A]lgae and bacteria may have been performing quantum calculations at life-friendly temperatures for billions of years. The evidence comes from a study of how energy travels across the light-harvesting molecules involved in photosynthesis. The work has culminated this week in the extraordinary announcement that these molecules in a marine alga may exploit quantum processes at room temperature to transfer energy without loss. Physicists had previously ruled out quantum processes, arguing that they could not persist for long enough at such temperatures to achieve anything useful." (via mr)
posted by kliuless on Feb 10, 2010 - 43 comments

Matter is merely vacuum fluctuations

Confirmed: Scientists Understand Where Mass Comes From. An exhaustive calculation of proton and neutron masses vindicates the Standard Model. Matter is merely vacuum fluctuations.
posted by homunculus on Nov 23, 2008 - 52 comments

The Z Machine

The Z Machine
"At first, we were disbelieving," said project leader Chris Deeney. "We repeated the experiment many times to make sure we had a true result." Scientists set record for hottest ever temperature record - 2 billion degrees Kelvin, or 3.6 billion degrees Fahrenheit, at one point the machine produced more energy than was put it. But they're not sure how, possibly fusion. High-res photo, higher-res photo, wikipedia, everything2.
posted by MetaMonkey on Mar 9, 2006 - 78 comments

The N Machine.

Physicist Bruce DePalma has a 100 kilowatt generator which he invented, named 'The N Machine', sitting in his garage. It could power his whole house, but if he turns it on, the government may confiscate it. This is because the U.S. Patent office automatically denies a patent to any gizmo which purports to produce more energy than it consumes, on the grounds that its personnel are not equipped to evaluate such claims. [more inside]
posted by Effigy2000 on Feb 4, 2006 - 138 comments

Boundless energy or bad math?

Boundless energy or bad math? Randell Mills thinks he has the solution to our energy problems. In his company's patented process, "energy is released as the electrons of atomic hydrogen are induced to undergo transitions to lower energy levels producing plasma, light, and novel hydrogen compounds." It also implies that quantum mechanics is wrong.
posted by Espoo2 on Nov 5, 2005 - 73 comments

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